/Engine/Source/Runtime/Engine/Public/PrimitiveSceneProxy.h
This function exist only to perform an update of the UsedMaterialsForVerification on the render thread
void SetUsedMaterialForVerification ( const [TArray](API\Runtime\Core\Containers\TArray)< [UMaterialInterface](API\Runtime\Engine\Materials\UMaterialInterface) * > & InUsedMaterialsForVerification )